<script setup>
import * as echarts from 'echarts'
import { nextTick, onMounted, onUnmounted, ref, shallowRef } from 'vue'
// import 'echarts/theme/macarons'

var dataAxis = []
for (var i = 1; i < 13; i++) {
  dataAxis.push(`${i}月`)
}
var data = [220, 182, 191, 234, 290, 330, 310, 123, 442, 321, 90, 149]
var yMax = 500
var dataShadow = []

// eslint-disable-next-Line no-redeclare
for (let i = 0; i < data.length; i++) {
  dataShadow.push(yMax)
}

const chart = shallowRef(null)
const echart = ref(null)
const initChart = () => {
  chart.value = echarts.init(echart.value /* 'macarons' */)
  setOptions()
}
const setOptions = () => {
  chart.value.setOption({
    grid: {
      left: '40',
      right: '20',
      top: '40',
      bottom: '20'
    },
    xAxis: {
      data: dataAxis,
      axisTick: {
        show: false
      },
      axisLine: {
        show: false
      },
      z: 10
    },
    yAxis: {
      axisLine: {
        show: false
      },
      axisTick: {
        show: false
      },
      axisLabel: {
        textStyle: {
          color: '#999'
        }
      }
    },
    dataZoom: [
      {
        type: 'inside'
      }
    ],
    series: [
      {
        type: 'bar',
        barWidth: '40%',
        itemStyle: {
          borderRadius: [5, 5, 0, 0],
          color: '#188df0'
        },
        emphasis: {
          itemStyle: {
            color: '#188df0'
          }
        },
        data: data
      }
    ]
  })
}

onMounted(async () => {
  await nextTick()
  initChart()
})

onUnmounted(() => {
  if (!chart.value) {
    return
  }
  chart.value.dispose()
  chart.value = null
})
</script>

<template>
  <div class="dashboard-line-box">
    <div class="dashboard-line-title">访问趋势</div>
    <div ref="echart" class="dashboard-line" />
  </div>
</template>

<style lang="scss" scoped>
.dashboard-line-box {
  .dashboard-line {
    width: 100%;
    height: 360px;
  }

  .dashboard-line-title {
    font-weight: 600;
    margin-bottom: 12px;
  }
}
</style>
